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Layering: made of anodized aluminum, sealing gap between screen and floors, ceilings, insulation and fixed screen role. Soundproof cotton: PAR acoustic fiber glass, with fire resistance, thermal resistance and noise reduction coefficient are in line with the United States ASTM standards.
Weight per square 50kg-60kg (according to the different decorative surfaces, each square unit of weight). Sound insulation factor range: 60dB Telescopic scope: active screen retractable telescopic range = 100mm
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